:root {
  --primary-color: #2563eb;
  --secondary-color: #7c3aed;
  --accent-color: #0d9488;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --background-white: #ffffff;
  --background-light: #f9fafb;
  --background-dark: #111827;
  --border-color: #e5e7eb;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--background-white);
  
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 600;
  margin-bottom: 16px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 16px; }

/* Buttons */
.btn-primary, .btn-secondary, .btn-product {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  font-size: 16px;
  min-height: 52px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-product {
  width: 100%;
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-product:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* Sections */
section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-description {
  text-align: center;
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 64px;
  line-height: 1.7;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  padding: 140px 0 120px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23667eea" fill-opacity="0.05"><circle cx="30" cy="30" r="2"/></g></svg>');
  z-index: -1;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-content {
  text-align: center;
}

.logo-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.logo {
  height: 56px;
  width: auto;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.brand-name {
  font-size: 2.25rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--text-primary);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.375rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-main-image {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 24px;
  box-shadow: var(--shadow-xl);
  object-fit: cover;
  aspect-ratio: 4/3;
}

/* About Section */
.about {
  background: linear-gradient(135deg, var(--background-light) 0%, rgba(249, 250, 251, 0.5) 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-top: 64px;
}

.stat-item {
  text-align: center;
  padding: 40px 32px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.stat-item h3 {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.stat-item p {
  color: var(--text-secondary);
  font-weight: 500;
  margin: 0;
}

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 40px 32px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 56px;
  height: 56px;
  color: var(--primary-color);
  margin-bottom: 24px;
}

.feature-card h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
  font-weight: 700;
}

.feature-card p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, rgba(79, 172, 254, 0.05) 100%);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.step {
  text-align: center;
  padding: 40px 32px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
}

.step:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.step-number {
  width: 72px;
  height: 72px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-md);
}

.step h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
  font-weight: 700;
}

.step p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* Products Section */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.product-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 40px 32px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 2px solid rgba(255, 255, 255, 0.2);
  position: relative;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-card.featured {
  border: 2px solid var(--primary-color);
  transform: scale(1.05);
  background: rgba(255, 255, 255, 0.95);
}

.product-card.featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.popular-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: 8px 20px;
  border-radius: 25px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.product-card h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
  font-weight: 700;
}

.product-price {
  font-size: 2.25rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 32px;
}

.product-features {
  list-style: none;
  margin-bottom: 40px;
}

.product-features li {
  padding: 12px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
  position: relative;
}

.product-features li:last-child {
  border-bottom: none;
}

.product-features li::before {
  content: '✓';
  color: var(--success-color);
  font-weight: bold;
  margin-right: 12px;
}

/* Benefits Section */
.benefits {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(13, 148, 136, 0.05) 100%);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 48px;
}

.benefit-item {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 40px 32px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.benefit-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.benefit-icon {
  width: 56px;
  height: 56px;
  color: var(--secondary-color);
  flex-shrink: 0;
}

.benefit-item h3 {
  margin-bottom: 12px;
  color: var(--text-primary);
  font-weight: 700;
}

.benefit-item p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* Use Cases Section */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.use-case-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 32px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
}

.use-case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.use-case-card h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
  font-weight: 700;
}

.use-case-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.use-case-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

/* Testimonials Section */
.testimonials {
  background: linear-gradient(135deg, rgba(240, 147, 251, 0.05) 0%, rgba(245, 87, 108, 0.05) 100%);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 40px;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 40px 32px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
}

.testimonial-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.testimonial-avatar {
  margin-bottom: 24px;
}

.avatar-image {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-md);
  border: 4px solid white;
}

.testimonial-card p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
  line-height: 1.6;
}

.testimonial-author strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 4px;
  font-weight: 700;
}

.testimonial-author span {
  color: var(--text-light);
  font-size: 0.875rem;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  width: 28px;
  height: 28px;
  color: var(--primary-color);
  flex-shrink: 0;
  margin-top: 4px;
}

.contact-item h3 {
  margin-bottom: 8px;
  color: var(--text-primary);
  font-weight: 700;
}

.contact-item p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

.contact-item a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.contact-item a:hover {
  text-decoration: underline;
}

.contact-form {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-group {
  margin-bottom: 24px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  border: 2px solid rgba(229, 231, 235, 0.5);
  border-radius: 12px;
  font-size: 16px;
  font-family: inherit;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: linear-gradient(135deg, var(--background-dark) 0%, #0f172a 100%);
  color: white;
  padding: 64px 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-brand-name {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 40px;
}

.footer-column h4 {
  margin-bottom: 20px;
  color: white;
  font-weight: 700;
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: 12px;
}

.footer-column ul li a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
}

.footer-column ul li a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 32px;
  text-align: center;
  color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  
  .hero .container {
    gap: 60px;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .section-title {
    font-size: 2.5rem;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  section {
    padding: 80px 0;
  }
  
  .hero {
    padding: 100px 0 80px;
    min-height: auto;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-image {
    order: 2;
  }
  
  .logo-brand {
    justify-content: center;
  }
  
  .logo {
    height: 48px;
  }
  
  .brand-name {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .section-title {
    font-size: 2.25rem;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .benefit-item {
    text-align: center;
    flex-direction: column;
    align-items: center;
  }
  
  .product-card.featured {
    transform: none;
  }
  
  .product-card.featured:hover {
    transform: translateY(-8px);
  }
  
  .stats-grid,
  .features-grid,
  .process-steps,
  .products-grid,
  .use-cases-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }
  
  section {
    padding: 60px 0;
  }
  
  .hero {
    padding: 80px 0 60px;
  }
  
  .logo {
    height: 40px;
  }
  
  .brand-name {
    font-size: 1.75rem;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 300px;
  }
  
  .benefit-item {
    padding: 32px 24px;
  }
  
  .hero-main-image {
    border-radius: 16px;
  }
  
  .use-case-image {
    height: 160px;
    border-radius: 8px;
  }
  
  .avatar-image {
    width: 60px;
    height: 60px;
  }
  
  .contact-form {
    padding: 32px 24px;
  }
}

@media (max-width: 360px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .logo-brand {
    flex-direction: column;
    gap: 12px;
  }
  
  .brand-name {
    font-size: 1.5rem;
  }
  
  .stat-item,
  .feature-card,
  .step,
  .product-card,
  .benefit-item,
  .use-case-card,
  .testimonial-card {
    padding: 24px 20px;
  }
}